11 Best Shopify Upsell and Cross-Sell Apps in 2026

If you run a Shopify store and accept cash on delivery (COD) orders, you know that optimizing your checkout flow is critical for maximizing conversions and minimizing fraud. Upsell and cross-sell apps tailored for COD streamline order capture, enhance the customer experience, and help boost your average order value. But with a crowded app marketplace, how do you choose the right solution for your business?

When selecting a Shopify upsell and cross-sell app for COD, merchants should consider several factors: breadth of features (such as upsells, downsells, quantity offers, and fraud prevention measures), language and integration support, pricing flexibility, and social proof through user reviews. Scalability and ease of use are also crucial, especially for high-volume or international stores. A truly great app should combine powerful upselling tools with robust security and analytics options to help you grow confidently.

Executive Summary: Our #1 pick is Releasit COD Form & Upsells. With unmatched language support, a comprehensive feature set, tiered pricing, and over 2,500 five-star reviews, it stands out as the most complete and merchant-validated choice for optimizing COD orders on Shopify.

Releasit COD Form & Upsells

Releasit COD Form & Upsells is designed to help Shopify merchants streamline cash on delivery orders with a frictionless, one-click form. The app not only simplifies checkout for COD customers but also provides powerful upsell, down-sell, and quantity offer features to drive higher order values. With support for 20 languages and deep integration with Shopify and third-party page builders, it’s built for versatility and scale.

• Key Capabilities: 1-Click COD Form, upsells, downsells, quantity offers, OTP verification, multi-currency support, Google Sheets integration, Facebook Pixel tracking, WhatsApp and SMS messaging, fraud protection, and advanced analytics.
• Integrations: Works with Checkout, Shopify Admin, GemPages, Google Sheets, Kaching Cart, PageFly, Wide Bundles, and Zipify Pages.
• Language Support: 20 languages, including English, Italian, Spanish, French, German, Japanese, Turkish, Chinese (Simplified and Traditional), and more.

Pricing Breakdown:

• Forever Free: Up to 60 orders/month, drag & drop form, basic fraud prevention, address validation, analytics, and 24/7 email support.
• Premium ($9.99/month): Adds up to 420 orders/month, quantity offers on product page, advanced fraud prevention, and 24/7 live chat.
• Enterprise ($29.99/month): Up to 10,000 orders/month, custom code help, and priority live chat with <5 min response.
• Unlimited ($69.99/month): Unlimited orders, A/B testing, AI recommendations, per-product form designs, and advanced analytics.

Pros: Unmatched review volume and rating (4.9 across 2,541 reviews), comprehensive upsell and fraud features, wide language and integration support, and flexible pricing for any scale.

Cons: Higher-tier plans may be required for advanced features and high order volumes.

Verdict: Releasit is the best fit for merchants who want a proven, global-ready COD solution with deep upsell capabilities — whether you’re just starting or scaling to thousands of orders a month.

Progus COD Form & OTP SMS

Progus COD Form & OTP SMS offers Shopify merchants a way to increase conversions using a fast COD order form combined with SMS OTP verification for fraud protection. The app is focused on giving merchants control over COD in the native Shopify checkout, with customizable forms and smart checkout rules.

• Key Capabilities: 1-Click COD Form, OTP verification, customizable design, partial payments, smart order form, fraud protection.
• Integrations: Checkout, Shopify Admin, GemPages, Pagefly, Zipify Page.
• Language Support: English only.

Pricing Breakdown:

• Free: Up to 60 COD orders/month, customizable form, basic fraud protection, 1 smart checkout rule.
• Basic ($4.99/month): Up to 200 orders/month, chat support.
• Standard ($9.99/month): Up to 480 orders/month, unlimited smart rules, +10% OTP credits, priority chat.
• Premium ($29.99/month): Unlimited orders, +30% OTP credits, priority chat.

Pros: Built for Shopify, competitive pricing tiers, and strong fraud prevention via OTP.

Cons: Only supports English, and review volume is much lower than the leader.

Verdict: Good for merchants who need a streamlined, English-only COD solution with OTP and custom rules at an accessible price.

FormBoost COD Form & Upsells

FormBoost COD Form & Upsells helps merchants drive more sales by offering COD order forms with upsells, bundles, and fraud protection. The app supports a broad set of features for increasing average order value and preventing fake orders, and integrates with analytics and ad tracking tools.

• Key Capabilities: 1-Click COD Form, upsells, downsells, quantity offers, Google Sheets integration, Facebook Pixel and ad tracking, customizable design.
• Integrations: Shopify Admin, Google Analytics 4, Google Sheets, Meta Pixel (CAPI), Snapchat Pixel, TikTok Pixel (CAPI).
• Language Support: 13 languages, including English, Arabic, French, Portuguese, German, Turkish, Urdu, and Indonesian.

Pricing Breakdown:

• Starter: Free for up to 100 orders/month, upsells, fraud protection, ad pixel support.
• Growth ($9.95/month): 1,000 orders/month, faster support.
• Unlimited ($19.95/month): Unlimited orders, priority support.

Pros: Broad language support and integrations, strong upsell feature set, and ad pixel compatibility.

Cons: Fewer reviews and not built for Shopify.

Verdict: Suitable for stores targeting diverse regions and using multiple ad platforms, but lacking the scale and validation of top picks.

Codify COD Form Upsell Fraud

Codify focuses on custom COD forms with fraud prevention, upsells, and ad pixel support. Its drag-and-drop builder and priority support on paid plans make it appealing for merchants wanting flexibility in form design and order control.

• Key Capabilities: 1-Click COD Form, upsells, Google Sheets integration, Facebook Pixel tracking, fraud protection.
• Integrations: Shopify Admin, Facebook Ads, Google Ads, Google Sheet, Meta Ads, Tiktok Ads.
• Language Support: French and English.

Pricing Breakdown:

• Free: 60 orders/month, drag & drop builder, basic support.
• Pro ($6.95/month): 300 orders/month, priority support.
• Premium ($9.95/month): 600 orders/month, premium support.
• Unlimited ($22.95/month): Unlimited orders, premium support.

Pros: Low entry price, ad pixel support, and priority support on higher tiers.

Cons: Very limited language support, not built for Shopify, and minimal social proof.

Verdict: Fits merchants looking for low-cost custom forms and basic fraud prevention, provided they operate in supported languages.

Preventify: COD Form & Upsells

Preventify delivers a customizable COD form with upsells, downsells, quantity offers, OTP verification, and multi-currency support. It is designed for dropshipping stores looking for a free or low-cost solution with live chat support.

• Key Capabilities: 1-Click COD Form, upsells, downsells, quantity offers, OTP verification, multi-currency, customizable design, priority support.
• Integrations: Checkout, Shopify Admin.
• Language Support: English and Arabic.

Pricing Breakdown:

• Free Forever: 200 orders/month, full customization, analytics.
• Basic ($4.99/month): 1,000 orders/month, multi-language form, OTP verification, live chat.
• Pro ($14.99/month): Unlimited orders, technical support, priority chat.

Pros: Free tier covers more orders than most, includes OTP and multi-currency support.

Cons: Minimal review volume, limited language coverage, not built for Shopify.

Verdict: Good for new dropshipping stores in English- or Arabic-speaking markets needing basic upsells and fraud tools.

ScalOrder COD Form & Upsells

ScalOrder provides a customizable COD order form with upsells, bundles, and WhatsApp checkout recovery. Designed for stores working primarily in English, the app supports ad pixel integration and fraud prevention.

• Key Capabilities: Customizable form layout (popup/embedded), upsells & bundles, Google Sheets sync, WhatsApp abandoned checkout recovery, shipping rates, multi-pixel, fraud prevention.
• Integrations: Shopify Admin.
• Language Support: English.

Pricing Breakdown:

• Free: 60 orders/month, all core features.
• PRO ($9.99/month): 440 orders/month.
• Unlimited ($24.99/month): Unlimited orders.

Pros: WhatsApp integration for abandoned checkouts, straightforward pricing.

Cons: Narrow language support and low review count.

Verdict: Fits English-language stores seeking WhatsApp recovery and bundled upsells at a reasonable price.

COD King‑Part COD & OTP Verify

COD King is a long-standing COD app for Shopify that focuses on order verification via OTP, partial payments, and abandoned cart recovery through SMS and WhatsApp. It also offers upsells and advanced rule-based controls for COD payments.

• Key Capabilities: 1-Click COD Form, upsells, OTP verification, WhatsApp support, partial payments, abandoned cart recovery.
• Integrations: Checkout, Customer accounts, Shopify Admin, Easy sell, Proweb sms, SMS, Twilio, Veevo tech, Whatsapp.
• Language Support: English.

Pricing Breakdown:

• Free to install: Includes OTP, partial payments, SMS/WhatsApp order confirmation and tracking, cart recovery.
• Pro ($9.99/month): Adds rules to limit COD, message discounts, and COD fees.
• Enterprise ($39/month): Local SMS, branded SMS, higher discounts.
• Enterprise Plus ($59/month): Shopify Plus OTP extension, exclusive priority support, no branding.

Pros: High review volume (958), feature-rich for verification and payment control, built for Shopify.

Cons: Only supports English, higher price for advanced features.

Verdict: Best for merchants prioritizing fraud prevention and partial payment capabilities in English-speaking markets.

EasyOrder COD Form&Order form

EasyOrder offers a streamlined order form for COD and pre-orders, focusing on checkout simplicity. It supports multiple tracking pixels, customizable fields, and abandoned checkout capture for stores needing a basic but flexible form solution.

• Key Capabilities: 1-Click COD Form, upsells, unlimited orders, custom fields, multi-tracking pixel, abandoned checkout support.
• Integrations: Shopify Admin, Cash on Delivery, KAVA Sections, OSync: Export Orders to Sheet, Preorder.
• Language Support: 9 languages, including English, Chinese (Simplified & Traditional), Dutch, French, German, Portuguese, and Spanish.

Pricing Breakdown:

• Premium Plan ($10/month): Unlimited orders, custom fields, tracking pixels, 24/7 support, customizable UI.

Pros: Supports multiple languages, unlimited orders, and tracking pixel support out of the box.

Cons: Higher starting price, not built for Shopify, modest review count.

Verdict: Suitable for stores needing unlimited orders and a straightforward COD form with basic upsell features in multiple languages.

CodForm ‑ COD Form & Upsells

CodForm enables merchants to add a custom COD order form, upsells, quantity offers, and social media pixel integration. The app targets stores that want flexible order form customization and WhatsApp support for customer follow-up.

• Key Capabilities: 1-Click COD Form, upsells, downsells, quantity offers, Google Sheets integration, Facebook Pixel tracking, WhatsApp support, customizable design, priority support.
• Integrations: Shopify Admin, Google Sheet.
• Language Support: 12 languages, including Arabic, German, English, French, Hindi, Italian, Indonesian, Turkish, Vietnamese, Portuguese, and Spanish.

Pricing Breakdown:

• Free: 60 orders/month, custom form, basic upsells, pixel & WhatsApp support.
• Basic ($9.99/month): 600 orders, abandoned order support, 24x7 support.
• Premium ($15.95/month): Unlimited orders, 24x7 support.
• Unlimited ($29/month): 5,000 orders/month, advanced abandoned order management, priority support.

Pros: Strong feature coverage, WhatsApp and pixel integrations, broad language support.

Cons: Not built for Shopify, lower review volume.

Verdict: Ideal for stores with international audiences seeking custom forms and support for multiple sales channels.

Priya COD Form: Made In India

Priya COD Form focuses on providing a highly customizable COD order form for Shopify stores. Its main appeal is ease of integration and flexibility in form design, targeting merchants who want a tailored experience for their customers.

• Key Capabilities: Highly customizable COD form, easy integration.
• Integrations: Shopify Admin.
• Language Support: English.

Pricing Breakdown:

Pricing details are not provided in the snapshot.

Pros: Simple, integration-focused, and customizable for stores needing a basic COD solution.

Cons: Only English supported, few reviews, not built for Shopify.

Verdict: A fit for merchants looking for straightforward, customizable COD forms without advanced upsell or fraud features.

COD Form & Upsell ‑ CodMonster

CodMonster offers customizable checkout forms and upsells to boost COD sales. It includes Google Sheets and major ad pixel integrations, quantity discounts, and testimonials, with scalable plans for growing stores.

• Key Capabilities: 1-Click COD Form, upsells, downsells, quantity offers, Google Sheets integration, Facebook Pixel tracking, fraud protection, customizable design, priority support.
• Integrations: Codpartner, Facebook Pixel, Google Ads, Google Sheets, Snapchat Pixel, TikTok Pixel.
• Language Support: 5 languages, including English, Arabic, French, German, and Spanish.

Pricing Breakdown:

• CodMonster Go ($14.99/month): 300 orders, 4 form styles, Google Sheets, basic customizations.
• CodMonster Grow ($29.99/month): 1,000 orders, more discount and upsell features.
• CodMonster Pro ($59.99/month): 5,000 orders/month, more integrations.

Pros: Advanced customization, ad pixel and Google Sheets support, scalable plans.

Cons: Highest starting price among the group, lower review score (3.6), and not built for Shopify.

Verdict: Best for established stores needing advanced form styling and integrations, but at a premium price point.

Buyer's Guide: Choosing the Best Shopify Upsell and Cross-Sell App for COD

1. Feature Breadth: Upsells, Downsells, and Fraud Protection

Look for an app that does more than just add a COD form. The best options provide one-click upsells, downsells, quantity offers, and robust fraud prevention (like OTP verification and multi-currency support). This enables you to maximize order value and reduce risk with every COD transaction.

2. Language and Internationalization Support

If you serve a global audience, wide language coverage is essential. An app like Releasit, with 20 supported languages, ensures that your COD form is accessible to customers around the world, reducing friction at checkout and opening new markets.

3. Integration Ecosystem

Consider which integrations matter to your business. Deep Shopify Admin and Checkout integration, plus compatibility with page builders (GemPages, PageFly, Zipify) and analytics tools (Google Sheets, ad pixels), will help streamline your workflow and marketing.

4. Pricing and Scalability

Evaluate free tiers for startups and transparent, scalable plans for growing stores. Look at both order volume limits and which features are included at each tier, making sure you won’t outgrow your app as your business expands.

Final Recommendation

For most Shopify merchants, Releasit COD Form & Upsells delivers the best combination of proven reliability, global readiness, and feature depth for cash on delivery upsell and cross-sell optimization. Its unmatched review count, broadest language support, and advanced fraud prevention tools make it a safe and powerful choice for both new and established stores.

If you prioritize advanced rule-based controls, English-only support, and partial payments, COD King is a solid alternative. Stores focused on social ad tracking or needing a free tier with basic upsell tools may consider FormBoost or Codify.

But for merchants ready to streamline COD checkout, drive higher order values, and sell confidently across multiple markets, Install Releasit COD Form & Upsells from the Shopify App Store.